How to insert a child element in an existing element

[developer]

I want to insert an child element in an existing element in an existing text file. my file is like this:
@<?xml version="1.0" encoding="UTF-8"?>
<passwords name="shubham the ultimate champion">
<account>
<name>shubham maheshwari</name>
<password>sdfsdf</password>
<account_type>forum</account_type>
<account_name>shubham1</account_name>
<home_page>ohloglsfosdf</home_page>
</account>
<account>
<name>siddharth maheshwari</name>
<password>adfadf</password>
<account_type>devnet</account_type>
<account_name>sidharth1</account_name>
<home_page>jkjskdfjdfsk</home_page>
</account>
</passwords>@
I have tried many things i want the best easy simple and fast way to insert a new tag named "account" in "passwords"

[tucnak]

Hi, ~developer!

Why can't you fetch DOM and append dom child into passwords with standart QtXml module's functional?

[developer]

@tucnak please a small exmaple code or hint or classes

[tucnak]

[quote author="developer" date="1352531950"]@tucnak please a small exmaple code or hint or classes[/quote]

Create "QDomDocument":http://qt-project.org/doc/qt-5.0/qdomdocument.html] refering to the file which has your XML.

Parse xml as DOM tree

Insert "QDomNode":http://qt-project.org/doc/qt-5.0/qdomnode.html after another node you need to find

[developer]

ok i have tried a lot please tell me how to parase xml as dom tree

[tucnak]

Use QDomNode nextSibling() while nextSibling's QDomNode will have the tag name 'passwords' and append to it your QDomNode.

References:
http://qt-project.org/doc/qt-4.8/qdomdocument.html#createElement
http://qt-project.org/doc/qt-4.8/qdomdocument.html#toString
http://doc.qt.digia.com/qt/qdomnode.html#appendChild
http://doc.qt.digia.com/qt/qdomnode.html#nextSibling

And read a bit about QtXml.